Need to reduce road noise? Install a bumpin' stereo system. :) That definately works.

I had the car up on stands last weekend, doing the 7500 mi oil change and service check. I couldn't help but notice that the fiberglass (?) covers on the underside are like drumheads. What is their purpose? Airflow control? I am tempted to drive with them removed and see if the car is quieter.

Strap pillows to the bottom of the car. :tup:

Actually, compared to my other car this 370z is super quiet.

Just got my Z, and I notice that the road noise is rather high as well. But dynamat is heavy, I think we need to add at least 20 lbs of dynamat to the car to make a little difference. Is it worthy? I have done that to my GTR and didn't notice a big difference though. Any other lighter material available in the market?

I wonder if that might actually work?
What about a few "u-haul" type blankets cut to shape and placed under the foam in the cargo area? Kinda ghetto i know but it might be worth a shot...

So.. Anyone with a 2009 or 2010 have the spray?

Bueller?